Company
Patent Public Search
Sample prompts where it appears
What are the best free patent search and clearance tools for a preliminary prior art search?
Brands:Google Patents,Espacenet,The Lens,Wipo Patentscope,Uspto Patent Center
What are the best patent search and clearance tools for checking novelty before filing?
Brands:Google Patents,Espacenet,The Lens,Uspto Patent Center,Patent Public Search
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How did Obsurfable measure this?
Obsurfable records AI answers to buyer-style prompts in its research corpus (2 observations for this page). Metrics are distributions over observations, not a single static ranking.
Which AI systems does Obsurfable collect answers from?
OpenAI, ChatGPT, Google, Gemini, Google AI Mode, Anthropic, Claude, Perplexity, Grok, DeepSeek, Mistral, Copilot, and Meta AI.